189936446 has 24 divisors (see below), whose sum is σ = 332385696. Its totient is φ = 81164160.

The previous prime is 189936419. The next prime is 189936463. The reversal of 189936446 is 644639981.

It is a super-2 number, since 2×189936446² = 72151707038221832, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 189936394 and 189936403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33326 + ... + 38606.

It is an arithmetic number, because the mean of its divisors is an integer number (13849404).

Almost surely, 2^189936446 is an apocalyptic number.

189936446 is a deficient number, since it is larger than the sum of its proper divisors (142449250).

189936446 is a wasteful number, since it uses less digits than its factorization.

189936446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5664 (or 5657 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 50.

The square root of 189936446 is about 13781.7432133965. The cubic root of 189936446 is about 574.8256015524.

The spelling of 189936446 in words is "one hundred eighty-nine million, nine hundred thirty-six thousand, four hundred forty-six".